CS 461 3-[[7β-[[(2-Aminothiazol-4-yl)[(Z)-methoxyimino]acetyl]amino]-4-carboxylatocepham-3-ene-3-yl]methyl]-5-(2-hydroxyethyl)-4-methylthiazole-3-ium 4-Methyl-5-(2-hydroxyethyl)-3-[[7β-[[(2-aminothiazol-4-yl)[(Z)-methoxyimino]acetyl]amino]-4-carboxylatocepham-3-ene-3-yl]methyl]thiazole-3-ium 7β-[2-(2-Aminothiazol-4-yl)-2-[(Z)-methoxyimino]acetylamino]-3-[[[4-methyl-5-(2-hydroxyethyl)thiazol]-3-ium]-3-yl]methylcepham-3-ene-4-carboxylic acid anion 134102-27-5